noun ·5 syllables ·Uncommon ·Advanced level

Definitions

Noun

1. 1
   The act of substantiating. countable, uncountable
2. 2
   the act of validating; finding or testing the truth of something wordnet
3. 3
   Something which substantiates; evidence, proof. countable, uncountable
4. 4
   additional proof that something that was believed (some fact or hypothesis or theory) is correct wordnet

Synonyms

All synonyms

affirmationassuranceattestationbackingcertificationcheck

Etymology

From Latin substantiātiō. By surface analysis, substantiate + -ion.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.